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Astronomical Julian date calculator
jday and j2d are command line utilities to convert calendar dates
to astronomical julian dates, and julian dates to calendar dates.
There is a corresponding library libjday.a which can be used for
the same functionality within applications.
Tile splitter for mkgmap
The format used for Garmin maps has, in effect, a maximum size,
meaning that you have to split an .osm file that contains large
well mapped regions into a number of smaller tiles. This program
does that.
Object Orientated interface to FITS HDUs
Stores information about a FITS header block in an object. Takes an hash with
an array reference as an argument. The array should contain a list of FITS
header cards as input.
Collection of useful astronomical routines in Perl
p5-Astro is a set of assorted astronomical routines.
Astro::Time, Astro::Coord and Astro::Misc provide a collection of
useful astronomical routines written entirely in Perl (so no
hassling about installing external libraries is required).
Catalogue of objects builder from astronomical images
SExtractor is a program that builds a catalogue of objects from an
astronomical image. Although it is particularly oriented towards
reduction of large scale galaxy-survey data, it performs rather
well on moderately crowded star fields.
Earth as seen from the direction of the sun
XWorld displays a pretty picture of our earth as it would look if
viewed from the direction of the sun. The window is regularly updated.
You can use xworld in lieu of a clock.
Programmable soundscape tool
Boodler is a tool for creating soundscapes -- continuous, infinitely
varying streams of sound. Boodler is designed to run in the background on a
computer, maintaining whatever sound environment you desire.
Backend utility to retrieve CDDB discid information
cd-discid is a backend utility to get CDDB discid information from a CD-ROM
disc. It was originally designed for abcde (AKA cdgrab), but can be used for
any purpose requiring CDDB data.
Simple, programmable, intelligent CD player
This is the port to libcdaudio of the original dcd player.
dcd plays CDs, lets you set up CD playlists, and does most of what
a conventional CD player does, in a (hopefully) intuitive manner.
Command-line player for flac audio files
Flac123 is a console-line Free Lossless Audio Codec (flac) audio player.
It implements mpg123's 'Remote Control' interface and has the ability to
output to a wav file or stdout.